So, what would be the basic case of a character getting hit on the head and losing a bunch of memories?
Easy Amnesia or
Laser Guided Amnesia? —
Document N
Does this trope exist: a character gets a lot of memories (after amnesia, previous lives, someone else), in a short time, often with a kaleidoscopic effect? Examples:
Duncan in
Heretics of Dune,
the end of Light's Memory Gambit in
Death Note,
Jackson Lake in a recent
Doctor Who. —Cigaes